The Howling Cliffs
Changes to Spells
Allows for firefinger effect to ignite imminently flammable things with a touch. Requires a full round of continuous contact which is rarely practical in combat situations.
Works on creatures, but only if they are particularly flammable or would reasonably be expected to ignite from a hot spark, e.g. recently drenched in oil. This use of it requires a successful ranged touch attack but does not allow a save.
Orb of Force (and all force spells)
Force-effect spells are all evocation rather than conjuration and allow for Spell Resistance.